ABB ACS880-77CC, Hardware Manual

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Cleaning the outlet (door or roof) filters
The outlet (door or roof) filter can be accessed by pulling the grating upwards.
Power connections
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Tightening
WARNING!
Only qualified electricians are allowed to do this work. Read the complete safety
instructions of the converter. If you ignore the instructions, physical injury, death,
or damage to the equipment can occur.
1. Disconnect the converter from the all power sourcesand make sure it is safe to start
the work. See the safety instructions.
2. Check the tightness of the cable connections. Use the tightening torques given in the
technical data.
Fans
The lifespan of the cooling fans of the converter depend on the running time of the fan,
ambient temperature and dust concentration. See the firmware manual for the parameter
or actual value which indicates the running time of the cooling fan of the converter modules.
For resetting the running time after a fan replacement, contact ABB.
Replacement fans are available from ABB. Do not use other than ABB specified spare parts.
All the fans in the converter are of the same type.
￭
Replacing the cooling fan of the converter module
WARNING!
Only qualified electricians are allowed to do this work. Read the complete safety
instructions of the converter. If you ignore the instructions, physical injury, death,
or damage to the equipment can occur.
1. Disconnect the converter from the all power sources and make sure it is safe to start
the work. See the safety instructions.
2. Cooling fan of the converter module (a) is located below the module. Open the door of
the converter module cubicle and remove the shroud in front of the fan.
3. Disconnect the wiring plug of the fan (b).
4. Remove the fastening screws (c) of the fan support.
5. Lift the fan unit out of the cabinet.
6. Detach the fan from the support plate by loosening the fastening screws of the fan.The
fan grille is detached then too.
7. Install a new fan in reverse order. Check that the air flow direction is correct (an arrow
indicating the direction is marked on the side of the fan). Remember to install the fan
grille before lifting the fan into the cabinet.
72 Maintenance